我努力改了四十年，现在才刚刚控制住。我过去几乎每天都生气，乔，但我学会了不把它表露出来；我还希望学会不把它感觉出来，虽然可能有的花上四十年的功夫。
Art is not a luxury; it’s a necessity.
When public speaking， pause frequently. Pause before you say something in a new way， pause after you have said something you believe is important， and pause as a relief to let listeners absorb details.
质量永远不应该妥协，即使面对成本上升。
The world we see that seems so insane is the result of a belief system that is not working. To perceive the world differently， we must be willing to change our belief system， let the past slip away， expand our sense of now， and dissolve the fear in our minds.
The changes we dread most may contain our salvation.
地理学的研究是对地球作为人类居住地的研究。
The greatest discovery of my generation is that human beings can alter their lives by altering their attitudes of mind.